The Tour's Pyrenean centenary is very much in mind today on a stage that features the Portet d'Aspet and Ares passes 100 years on from their appearance in the race's first ever high mountains day.
Complementing these Tour stalwarts is the Port de Balès, a pass first opened up primarily for the race’s use in 2007. Sections of 11 per cent are certain to thin out the yellow jersey group and some of those riders dropped might find it hard to get back up to the contenders on the high-speed descent into Bagnères-de-Luchon.
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